Excerpts from daniel.buenzli's message of Sun Nov 16 19:22:02 +0100 2008:
> Hello,
>
> Is it possible to specify a single installed module (instead of a lib)
> for link time ? That is is there something like -lib but for module so
> that I can type :
>
> ocamlbuild -I +xmlm -mod xmlm test.native
>
> where test.ml uses the xmlm module
This would make sense, but I would prefer not to push things in this
direction. Options like -lib,-cflag,-lflag... are intended to be used
only in a quick hack usage, indeed they are global and tags are much
more powerful.
> And what about having special tags use_lib_$LIB and use_mod_$MOD that
> automatically create rules to use libraries $LIB.cm(x)a and module
> $MOD.cm(o|x) so that just the appropriate -I to find the files has to
> be specified. In most cases having to use a plugin just for that seems
> overkill. Or is there another way ?
I'm a bit uncomfortable with this kind of dynamic or special tags.
However the simplest solution to your problem is probably one of those:
1/ ocamlbuild -cflags -I,+xmlm,xmlm.cmx test.native
2/ ln -s <sources-of-xmlm> xmlm
ocamlbuild -I xmlm test.native
3/ ln -s $(ocamlc -where)/xmlm .
ocamlbuild -tag_line '"xmlm": not_hygienic' -I xmlm test.native
Hope that helps,
--
Nicolas Pouillard aka Ertai